Improvement in machines for grinding



R. BUTTERWORTH. MACHINE FOR GRINDING APPLES.

No. 49,714. Patented Sept. 5, 1865.

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v UNITED STATES PATENT OFFICE.

ROBERT nur'rnnwonrmor TRENTON, new Jensen. a i

IMPROVEMENT I-N MACHINES'IFLOR GRINDINGMAPPLES.

Specification forming part of Letters Patent No. 49,714, dated September 5, 1865.

To all whom it may concern:

Be it known that I, ROBERT Bucr'rnnwonrn," of Trenton, Mercer county, State of New J ersoy, haveinvented a newand Improved Machine forGrinding Apples; and ldo hereby declare that thefollowing isa full, clear, and exactdescr-iption thereof, which will enable others skilled in the art to make and use the same, reference being had to the acc0mpany-' ture of cider; and it consists in a novel and im'- proved construction of algrindin gcylinder,' and also in the employment or usecf a series of pressure-plates, arranged with springs in such a manner that the work may be done in an expeditious and perfect manner. f

A represents what may be termed the. bed or framing of the machine, on which a horizontal shat't, B, is placed, having a cylinder, 0,

- upon it ofeast-iron. This-cylinder is hollow,

and is cast, with longitudinal boxes projecting a short distance beyond the heads of thecylinder, and having a set-screw, E, in each end of' them, to secure the knives or cutters D in position. These knives or cutters. are formed out of a single plate of steel, notched or cut at suitable and equal distances apart to form a series of cutting-projections, c, which have chiselshaped edges, and are adjusted so as'to project beyond the periphery of the cyli'nder G, the projections being secured in position,- as

previously stated, by the setscrews E; This will be fully understood :by referring to Figs;

3 and 4. On each end'of the cylinder .0 a wrought-iron hand, F, is shrunk or otherwise secured, and over the cylinder a hopper, G, is placed, into which the apples to be ground or out are placed.

Fl represents a series of plates which are secured to one side of the hopper G, and in fact from one side of it. vThese plates have a pendant position, and have joints at their upper parts, as shown at d. These plates'H have springs I bearing'against them, which may be constructed of steel wire bent so as to have two or more convolutions, e, and extending down so as to press against the lower. parts of the plates.v The upper ends of the springs I are secured in metal heads or blocks J which are fitted loosely on a shaft, K, the ends of which are secured in the side plates or planking of the hopperin such a manner that it will not 'beallowed to turn, and the heads or blocks J are secured on the shaft K by set-screwy". By ad usting or turning the heads or blocks J on the shaft K the springs I may be made toexer't a greater or less pressure against the plates II, asldesired. Each plate H has a rod, L, at-

tached to it by a joint, g, and these 'rodspass through a har ivi, and have nuts k on their outer parts. By adjusting these nuts the plates H maybe brought nearer to or farther from the periphery of the cylinder O, as will be fully understood by referring to Fig. 2. The plates H, it will be seen,forni asectional concave, as they are slightly curved, and each plate is allowed to yield or give to admit of hard foreign substances passing through the machine, the

degree of resistance which the plates offer to such substances being regulated by adjusting the heads or blocks J on the shaft K which regulates the pressure of the springs I. When the cylinder 0 is rotated the apples are cut or ground by' the knives between the cylinder 0 and the plates H, stones and other hard foreign substances forcing outward from the cylinder the plate H, with which they come in contact, so that they may pass through the machine 'withoutinj uring any of its working parts, the springs I throwing the plates hack to their original position as soon as the foreign substances have passed them. i v

The degree of fineness in which the apples are to be'cut or reduced is regulated byadjusting the plates H t nuts h. v g

The knives, when they require sharpening, may he takenout from the cutter G and reset in a short time and without any difliculty whatever.

I claim as new and desire to secure by LettersPatent- 1. A cast-metal cylinder provided with lonhroug'h the medium of the gitndinal boxes a, to receive the knives or cut- 3. The reguiatingofthepressureofthespring ters D, which boxes project beyond the ends I against the plates H by means of the heads or heads'of the cylinder to receive set-screws E or blocks J on the fixed shaft K and the set for setting the knives or cutters and securing screw f, substantially as set forth.

them in position substantially as set forth.

' 2; The sectional concave, composed ofpiates ROBERT BUTTERWOREH' H, provided with joints, and having springs I I Witnesses:

. hearing against their lower ends and regulated PETER SPBAGKLEN,

by rodsL and nuts h, substantially-as described. JOHN BUTTEEWORTH, Jun. 

